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All results from a given calculation for C5H10 (2-Pentene, (Z)-)

using model chemistry: HF/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/6-31G
 hartrees
Energy at 0K-195.066855
Energy at 298.15K-195.077231
Nuclear repulsion energy171.519536
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3324 3001 72.56      
2 A 3293 2973 19.94      
3 A 3286 2967 24.80      
4 A 3263 2946 54.13      
5 A 3256 2940 48.01      
6 A 3237 2922 4.45      
7 A 3225 2912 36.65      
8 A 3185 2876 33.84      
9 A 3179 2871 45.96      
10 A 3172 2864 43.55      
11 A 1894 1711 1.03      
12 A 1666 1504 11.20      
13 A 1656 1496 2.26      
14 A 1655 1495 5.64      
15 A 1647 1487 7.13      
16 A 1645 1485 4.24      
17 A 1594 1439 6.96      
18 A 1582 1428 3.50      
19 A 1570 1418 1.54      
20 A 1495 1350 5.12      
21 A 1438 1298 0.34      
22 A 1415 1278 0.24      
23 A 1297 1171 0.88      
24 A 1222 1103 3.12      
25 A 1208 1090 4.83      
26 A 1168 1054 0.11      
27 A 1149 1037 0.55      
28 A 1106 999 2.37      
29 A 1015 916 8.68      
30 A 934 843 2.00      
31 A 882 797 8.42      
32 A 808 730 39.80      
33 A 626 566 5.76      
34 A 523 472 1.34      
35 A 328 296 0.01      
36 A 287 260 0.07      
37 A 231 209 0.01      
38 A 122 110 0.27      
39 A 53 48 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 32317.4 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 29179.4 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/6-31G
ABC
0.37290 0.08564 0.07842

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.185 -0.292 -0.414
H2 2.662 0.671 -0.568
H3 2.939 -0.981 -0.049
H4 1.839 -0.648 -1.377
C5 1.017 -0.177 0.578
H6 0.578 -1.155 0.729
H7 1.408 0.134 1.545
C8 -2.067 -0.677 -0.078
H9 -2.508 -0.912 -1.042
H10 -1.456 -1.518 0.218
H11 -2.884 -0.595 0.632
C12 -0.016 0.820 0.126
H13 0.360 1.825 0.012
C14 -1.297 0.612 -0.151
H15 -1.880 1.461 -0.468

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 H11 C12 H13 C14 H15
C11.08501.08451.08401.53682.15332.15004.28254.77593.89405.18532.52442.82743.60754.4275
H21.08501.75331.75262.17653.05942.51454.94115.42784.72935.81402.76992.63963.98134.6113
H31.08451.75331.75652.17542.49242.47595.01495.53744.43585.87573.46493.81184.52705.4188
H41.08401.75261.75652.17272.50723.05554.11594.36793.76295.13312.80253.19873.59534.3707
C51.53682.17652.17542.17271.08271.08803.19243.94922.83653.92441.50572.18232.55193.4893
H62.15333.05942.49242.50721.08271.73692.80603.56672.12833.50842.14923.07302.72283.7842
H72.15002.51452.47593.05551.08801.73693.91974.80873.56274.44832.12362.51103.22794.0772
C84.28254.94115.01494.11593.19242.80603.91971.08621.08101.08632.54763.48651.50322.1813
H94.77595.42785.53744.36793.94923.56674.80871.08621.75031.74543.25264.10232.14142.5211
H103.89404.72934.43583.76292.83652.12833.56271.08101.75031.75032.74823.81012.16813.0867
H115.18535.81405.87575.13313.92443.50844.44831.08631.74541.75033.23874.09472.14252.5393
C122.52442.76993.46492.80251.50572.14922.12362.54763.25262.74823.23871.07851.32742.0591
H132.82742.63963.81183.19872.18233.07302.51103.48654.10233.81014.09471.07852.05972.3196
C143.60753.98134.52703.59532.55192.72283.22791.50322.14142.16812.14251.32742.05971.0776
H154.42754.61135.41884.37073.48933.78424.07722.18132.52113.08672.53932.05912.31961.0776

picture of 2-Pentene, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.358 C1 C5 H7 108.791
C1 C5 C12 112.134 H2 C1 H3 107.837
H2 C1 H4 107.802 H2 C1 C5 111.056
H3 C1 H4 108.196 H3 C1 C5 111.005
H4 C1 C5 110.812 C5 C12 H13 114.211
C5 C12 C14 128.396 H6 C5 H7 106.296
H6 C5 C12 111.210 H7 C5 C12 108.854
C8 C14 C12 128.211 C8 C14 H15 114.380
H9 C8 H10 107.731 H9 C8 H11 106.907
H9 C8 C14 110.552 H10 C8 H11 107.720
H10 C8 C14 113.054 H11 C8 C14 110.626
C12 C14 H15 117.408 H13 C12 C14 117.390
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.444 -0.203    
2 H 0.149 0.047    
3 H 0.151 0.026    
4 H 0.157 0.038    
5 C -0.351 0.410    
6 H 0.162 -0.056    
7 H 0.164 -0.077    
8 C -0.494 0.077    
9 H 0.163 0.001    
10 H 0.163 0.010    
11 H 0.164 -0.004    
12 C -0.146 -0.346    
13 H 0.161 0.126    
14 C -0.161 -0.155    
15 H 0.161 0.105    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.021 -0.183 0.033 0.187
CHELPG -0.039 -0.191 0.030 0.197
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.455 0.309 0.850
y 0.309 -32.906 -0.406
z 0.850 -0.406 -34.946
Traceless
 xyz
x 1.471 0.309 0.850
y 0.309 0.795 -0.406
z 0.850 -0.406 -2.266
Polar
3z2-r2-4.532
x2-y20.451
xy0.309
xz0.850
yz-0.406


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.385 0.382 0.752
y 0.382 6.883 -0.144
z 0.752 -0.144 5.743


<r2> (average value of r2) Å2
<r2> 165.358
(<r2>)1/2 12.859